213703704 has 64 divisors (see below), whose sum is σ = 601797600. Its totient is φ = 70253568.

The previous prime is 213703703. The next prime is 213703709. The reversal of 213703704 is 407307312.

213703704 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213703703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8992 + ... + 22544.

Almost surely, 2^213703704 is an apocalyptic number.

213703704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213703704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300898800).

213703704 is an abundant number, since it is smaller than the sum of its proper divisors (388093896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213703704 is a wasteful number, since it uses less digits than its factorization.

213703704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13641 (or 13631 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 213703704 is about 14618.6081416802. The cubic root of 213703704 is about 597.8662206382.

The spelling of 213703704 in words is "two hundred thirteen million, seven hundred three thousand, seven hundred four".